[MEncoder-users] Mencoder bug on ARM

[alesan at manoweb.com]

> Now I was able to correctly encode a video from few frames
> , the performance are acceptable for this kind of machine 


It seems there is an encoding bug for arm.
It regards "flash video" output, everything seems fine with
"standard" mpeg4 encoding.
I have uploaded a test case at:

http://www.manoweb.com/alesan/temp/test-arm-flv.tar.bz2
[6.74MB]

What I am trying to do if to encode some pictures from a
digital camera in "flash video" format. I included some
pictures and a script that does the following:

mencoder mf://2007*.jpg -mf w=2048:h=1536:fps=25:type=jpg
-vf scale=720:540 -of lavf -lavfopts
i_certify_that_my_video_stream_does_not_use_b_frames
-ffourcc FLV1 -ovc lavc -lavcopts vcodec=flv -o 2007.flv

while this very command works and produces a good output on
a x86 computer, the version made by the arm box is not
playable by mplayer:

$ mplayer 2007-arm.flv
MPlayer 2:1.0~rc1-0ubuntu9.1 (C) 2000-2006 MPlayer Team
CPU: Intel(R) Core(TM)2 CPU          6300  @ 1.86GHz
(Family: 6, Model: 15, Stepping: 6)
CPUflags:  MMX: 1 MMX2: 1 3DNow: 0 3DNow2: 0 SSE: 1 SSE2: 1
Compiled with runtime CPU detection.
Can't open joystick device /dev/input/js0: No such file or
directory
Can't init input joystick
mplayer: could not connect to socket
mplayer: No such file or directory
Failed to open LIRC support. You will not be able to use
your remote control.

Playing 2007-arm.flv.
libavformat file format detected.
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Could not find codec parameters (Video:
0x0006)
LAVF_header: av_find_stream_info() failed
libavformat file format detected.
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Unsupported video codec (6)
[flv @ 0xa617b0]Could not find codec parameters (Video:
0x0006)
LAVF_header: av_find_stream_info() failed


Exiting... (End of file)